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300
Aristotle
Aristotle was born in the village of Statigra, Greece. He is considered a father of philosophy and reason. He is also known for his many contributions to science, ecspecially in the field of biology.
384 bc
http://www.bookrags.com/biography/aristotle-wsd/ -
300
Eratosthenes
- 276 BC
- Discover the dimensions of the earth
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300
Pythagoras
- 580 BC
- He thought that earth was a sphere in the middle of the universe
- One of the first to realize venus as an evening star http://www.nndb.com/people/773/000087512/ http://9waysmysteryschool.tripod.com/sacredsoundtools/id13.html
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300
HIpparchus
- 190 BC
- Discopered presicion of equinoxes
- Calculated the length of a year http://www.nndb.com/people/842/000103533/ http://www.answers.com/topic/hipparchus-1
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300
Ancient Greek Astronomy
- Most ancient civilizations watched the heavens as patterns in the sky that allowed the to know when the seasons change
- Begining of accurate astronomy
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310
Aristarchus of Samos
Aristarchus was the first Greek Philosopher to propose that the sun was the center. http://www.varchive.org/ce/orbit/arisam.htm
http://www.nndb.com/people/756/000096468/ -
Feb 19, 1473
Copernicus
- Discovered heliocentricity
- Predicted eclpiseshttp://www.sheppardsoftware.com/globeweb/factfile/Unique-facts-Globe5.htm
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Dec 14, 1546
Tycho Brahe
- First to study a supernova
- Developed a theory of planetary motion http://library.thinkquest.org/28327/main/exploration/people/brahe.html
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Feb 15, 1564
Galileo Galilei
- Made improvements to the telescope
- His contributions to observational astronomy include the telescopic confirmation of the phases of Venus, the discovery of the four largest satellites of Jupiter (named the Galilean moons in his honour), and the observation and analysis of sunspots. http://en.wikipedia.org/wiki/Galileo_Galilei
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Dec 27, 1571
Johannes Kepler
- Discovered Earth Orbits the Sun
- Helped launch the scientific revoloutionhttp://www.keplersdiscovery.com/
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Isaac Newton
- Formulated the laws of Gravitation
- Improved the telescope
http://www.enchantedlearning.com/subjects/astronomy/glossary/Newton.shtml -
Annie Jump Cannon
She created the new scheme of stellar clasification. Annie discovered about 300 stars, which gave her the nickname "census taker of the sky."
http://www.wellesley.edu/Anniversary/cannon.html -
George Hale
- He invented the spectroheliograph in 1889
- The spectroheliograph enabled him to take pictures of the sun in daylight.
- Discovered sunspot cycles
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Henrietta Swan Leavitt
- Discovered 1,777 variable stars in the Magellanic Clouds
- Discovered Cepheid Variable
http://en.wikipedia.org/wiki/Henrietta_Swan_Leavitt -
Bengt Georg Daniel Stromgren
- Discovered what Stars and the Huge space between them are made of
- Discovered hydrogen is the main component of starts
- made major advances in narrow-band photoelectric photometry http://www.freebase.com/view/en/bengt_stromgren http://www.nndb.com/people/142/000173620/
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Edwin Hubble
- He is known as the "Father of Cosmology"
- Created a classification system for galaxies
- Developee Hubbles Law
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Gerard Kuiper
- Discovered 2 satelites in our solar system
- One for Neptune, and on for Uranus
- Discovered CO2 on Mars. http://en.wikipedia.org/wiki/Gerard_Kuiper http://www.daviddarling.info/encyclopedia/K/KuiperGP.html
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Subrahmanyan Chandrasekhar
- Discovery of the creation of White Dwarfs
- Better known as the evolutionary stages of stars
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Grote Reber
- Constructed the worlds first radio telescope
- Confirmed Janskey's discoveries
http://www.nrao.edu/whatisra/hist_reber.shtml -
James Van Allen
- Discovered the Van Allen Belt
- Van Allen Belts are the belts of Radiation http://www.nndb.com/people/559/000055394/ http://www.windows2universe.org/earth/Magnetosphere/radiation_belts_discovery.html
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Sir Fred Hoyle
- Coined the term "Big Bang"
- Rejected the Big Bang Theory
http://www.nndb.com/people/758/000113419/ -
E. Margaret Burbidge
- Studied the spectra of galaxies, nuclear reactions at the center of stars, and conducted spectroscopic surveys of quasars. -She was at the forefront of developing instrumentation for the Hubble Space Telescope.
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Eugene Shoemaker
- Studied the impact dynamics of Barringer Meteor Crater
- He was a possible candidate for an Apollo moon flight
- Disqualified due to Addisons disease http://en.wikipedia.org/wiki/Eugene_Merle_Shoemaker
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Thomas Mutch
- Head of the Viking Surface Photography team
- Published 2 books on the geology of the moon and Mars\
